Dongqi Double Girder Overhead Bridge Crane with Electric Hoist, for Lifting Heavy Duty Materials
Double Girder Overhead Crane
Key Specifications/Special Features
Design, features and specifications:
Widely used heavy duty light weight LH overhead crane is used when heavier loads, wider spans or higher working frequency are required
Double girder cranes consist of two torsion-free box girders
This makes double girder cranes suitable for lifting and transporting loads over 10T and for span of more than 25m
Double girder overhead cranes are available with load capacities up to 100T and with spans up to 50m
Heavy duty end carriage joints ensure positive contact of all four wheels with the track
The profiles of the main girder are optimally produced using an integrated technology which is weldless, so that maximum performance with a minimum of dead weight can be achieved
Optional features:
Variable speed through VVF drive
Soft starter
Slip ring motors
Wireless radio remote control
Shrouded DSL system for power feeding
Flameproof
Cabin operated
PLC automatic control system
Advantage:
1). Compact design, optimal use of the work areas
2). Heavier loads, wider spans and higher working frequency
3). Control the load easily, position the load exactly
4). Superior safety and reliability
5). “One-stop shop” for your crane and hoist needs
Safety:
Overload protection
Main lifting motor with thermal protection
Hooks with latch
Rubber buffers
Protective earthing
Emergency switch
Sub-assemblies characteristic are tested before assembly
All cranes must be preassembled and tested before leaving factory and offer the certification of test
Standard features:
Design:
Motors: the motors are used specially crane duty suitable for frequent starting, reversing and braking in accordance with ISO 9001:2000 ISO 14001:2004
Brakes: independent hydraulic brake make the crane safer and easier to control
Gear box: the entire gear boxes are made of accurate hob cut helical/spur gears and pinions having hardness 250 to 350 BHN made from carbon alloy steel
Wheels: the wheels of crane crab, main beam and end carriage are produced in our special vacuum casting workshop (no sand inclusion technique) which makes our wheels more elastic and outer surface hard-wearing and durable
Electrical panel: nodular design, ease to install and maintain, reliable operation, fuse less circuitry, ducted wiring and compact terminals, motor overload protection to prevent overloading
Limit switch: safety limit switches for stoppers will be provided to prevent over traveling in all motions
Painting: two coats of primer before assembly and two coats of synthetic enamel after testing
